System for hiding runtime environment dependent part

Abstract

This invention provides a runtime environment dependency hiding apparatus and the like, which hides a part that depends on the runtime environment in software which runs on a plurality of runtime environments having different specifications. An environment information acquisition unit acquires environment information that pertains to the runtime environment of a Java program from standard properties and the like. A dependence information generation unit generates a dependence information list required for processing the part that depends on the runtime environment in the Java program on the basis of dependence information generation information. A search key generation unit generates a search key in accordance with search key generation knowledge on the basis of the environment information acquired by the environment information acquisition unit. A dependence information search unit searches the dependence information list generated by the dependence information generation unit for dependence information corresponding to the current runtime environment on the basis of the search key generated by the search key generation unit. A process execution unit executes the processing of the part that depends on the runtime environment on the basis of the dependence information obtained by the dependence information search unit.

Description

BACKGROUND OF THE INVENTION[0001]1. Field of the Invention[0002]The present invention relates to software which can run on a plurality of environments having different specifications and, more particularly, to a runtime environment dependency hiding apparatus and method which can achieve easy maintenance and high re-usability of software by hiding a part that depends on the runtime environment in software to make it invisible, and a computer readable recording medium that records a runtime environment dependency hiding program.[0003]2. Related Background Art[0004]Since source code of software is normally converted by a compiler into that in a runtime format premised on an operating system, peripheral devices, command sets unique to a CPU, and the like, the runtime format generated from source code depends on the platform such as an operating system and the like.[0005]Since such platform dependence of software is a serious bottleneck upon development and distribution of versatile sof...

AI Technical Summary

Benefits of technology

[0029]According to the first to third features of the present invention, since at least one dependence information candidate required for processing a part that depends on the runtime environment in software are separately prepared without being embedded in software, and dependence information corresponding to the current runtime environment is dynamically acquired from the dependence information candidates on the basis of environment information that pertains to the runtime environment of software, the part that depends on the runtime environment can be easily changed, and necessity of re-compiling can be avoided, thus improving maintenance and re-usability of software.

[0030]According to the fourth feature of the present invention, in addition to the first to third features mentioned above, since acquisition target element names indicating environment information to be used upon selecting a dependence information candidate are separately prepared without being embedded in software, and environment information to be acquired is dynamically acquired, the part that depends on the runtime environment can be further easily changed.

Problems solved by technology

However, in such a Java program, since information (“Microsoft”, “SUN Microsystems”) as a basis for switching decision, the shared library name (“MS”, “SUN”) to be loaded, and the like are directly written in Java code (see the italics in FIG. 18), re-compiling is required every time information as a basis for switching decision, the shared library name, and the like are added / changed, resulting in poor maintenance and re-usability.

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